Liquid food feeding device for critical care

Abstract

The present invention discloses a liquid food feeding device for critical care, and relates to the technical field of medical devices. The present invention comprises an outer cylinder and an upper cover plate and a lower lining plate respectively arranged at the upper and lower positions of the outer cylinder, and also comprises a U-shaped tube and an inner cylinder arranged inside the outer cylinder, and a connecting sleeve is also arranged at the upper end position of the inner wall of the outer cylinder, and a through groove is arranged in the connecting sleeve along the vertical direction, and a connecting groove is connected and arranged on the outer cylinder on one side of the through groove, and a discharge pipe is connected and arranged on the outer wall of the outer cylinder at the connecting groove position; one end of the U-shaped tube slides from the bottom of the inner cylinder and penetrates and extends to the inside of the inner cylinder, and the other end of the U-shaped tube slides and inserts into the through groove from the lower end of the connecting sleeve, and the U-shaped tube overlaps the connecting groove by 2 / 3-3 / 4 in height. The present invention can timely control whether the liquid food flows, can detect the consistency of the liquid food, can effectively heat the liquid food, and has good overall practicality. At the same time, the device is easy to disassemble and clean, and can effectively avoid the breeding of internal bacteria.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a liquid food feeding device for critical care. Background Art

[0002] At present, patients who need to be monitored in intensive care units are often seriously ill and bedridden. They cannot take care of themselves and need the care of hospital medical staff for drinking water and eating. Most critically ill patients can only take liquid food, and some critically ill patients also need oral liquid medicines. It is sometimes difficult for medical staff to feed liquid food or liquid medicines into the patient's mouth, which brings great trouble to medical staff. Therefore, people gradually use liquid food feeding devices to replace manual feeding by medical staff, which brings convenience to the daily work of medical staff;

[0003] As disclosed in the existing open documents, CN213526467U-A liquid food feeding device for nursing in an intensive care unit, discloses a feeding cylinder, the bottom of which is provided with a connection block and a discharge pipe connected to the inside of the feeding cylinder, a one-way valve is provided in the discharge pipe, a cylinder cover, a pressurizing mechanism for pressurizing the inside of the feeding cylinder, an adjusting mechanism for adjusting the amount of liquid food discharged from the feeding cylinder, a connector for docking with the adjusting mechanism, and a feeding hose, the cylinder cover is fixedly connected to the feeding cylinder, the pressurizing mechanism is fixed to the top of the cylinder cover, the adjusting mechanism is fixedly connected to the bottom of the feeding cylinder, the connector is horizontally connected to the bottom of the connection block, the feeding hose is fixedly connected to the bottom of the connector, and the feeding hose is connected to the connector, and the top and bottom of the adjusting mechanism are respectively connected to the discharge pipe and the connector in a conflicting manner. The utility model can effectively control the amount of liquid food or liquid medicine entering the mouth of a critically ill patient, and is simple to operate and has strong practicality.

[0004] Although the liquid food feeding devices disclosed in the existing public documents can realize liquid food feeding for seriously ill patients, the operation is simple and convenient, and the labor intensity of medical staff is reduced, the existing liquid food feeding devices still have the following shortcomings in actual use:

[0005] 1. When using the existing liquid food feeding device, it is necessary to increase the squeezing force for feeding. However, when the patient has a situation such as liquid food entering the trachea and coughing, even if the medical staff stops the liquid food delivery in time, the liquid food will continue to be input due to the pressure, which poses a certain safety hazard;

[0006] 2. The existing liquid food feeding device cannot detect the viscosity of the liquid food when in use, because the concentration of liquid food required by patients in different situations is different, which makes the overall use of the device inconvenient;

[0007] 3. The existing liquid food feeding device cannot detect the temperature of the liquid food when in use, which sometimes results in the liquid food being fed at a low temperature and affecting the patient's consumption;

[0008] 4. The existing liquid food feeding device is composed of an integrated structure, which is inconvenient to clean the inside, and it is very easy to cause internal bacteria to contaminate the liquid food;

[0009] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Summary of the invention

[0010] The purpose of the present invention is to provide a liquid food feeding device for critical care which can cut off liquid food in time, detect the concentration of liquid food, heat liquid food and facilitate cleaning of the inside of the device, thereby solving the problems of existing liquid food feeding devices in actual use, such as failure to cut off liquid food in time, failure to detect the concentration of liquid food, failure to assist in heating liquid food and inconvenience in cleaning the inside of the device.

[0011] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0012] The present invention is a liquid food feeding device for critical care, comprising an outer cylinder and an upper cover plate and a lower lining plate respectively arranged at the upper and lower positions of the outer cylinder, and further comprising a U-shaped tube and an inner cylinder arranged inside the outer cylinder, wherein a connecting sleeve is further arranged at the upper end position of the inner wall of the outer cylinder, a through groove is arranged in the connecting sleeve along the vertical direction, a connecting groove is arranged on the outer cylinder at one side of the through groove, and a discharge pipe is arranged on the outer wall of the outer cylinder at the position of the connecting groove;

[0013] One end of the U-shaped tube slides through the bottom of the inner tube and extends into the inner tube, while the other end of the U-shaped tube slides into the through groove from the lower end of the connecting sleeve, and the U-shaped tube overlaps the connecting groove by 2 / 3-3 / 4 in height;

[0014] A corrugated airbag is arranged on the outside of the U-shaped tube in the inner cylinder in the vertical direction, the lower end of the corrugated airbag is fixedly connected to the inner bottom surface of the inner cylinder, and the upper end of the corrugated airbag is fixedly connected to a piston disk;

[0015] The upper end of the U-shaped tube in the inner cylinder is detachably mounted with a viscosity detection mechanism, and a rectangular groove for accommodating the viscosity detection mechanism is provided on the top surface of the piston disc, and the top surface of the viscosity detection mechanism and the top surface of the U-shaped tube matched in the through groove are located on the same horizontal plane;

[0016] The upper end of the inner cylinder is covered with a first rubber sealing cover, and the upper end of the connecting sleeve is covered with a second rubber sealing cover, and the first rubber sealing cover and the second rubber sealing cover are both fixedly connected to the bottom surface of the upper cover plate; the first rubber sealing cover is provided with a first ventilation groove, and the second rubber sealing cover is provided with a second ventilation groove, and the interior of the upper cover plate is provided with a U-shaped groove respectively connected with the first ventilation groove and the second ventilation groove.

[0017] Furthermore, an air inlet pipe communicating with the interior of the corrugated airbag is provided on the bottom surface of the inner tube, the air inlet pipe is connected to the air outlet of the air pump through the first air delivery pipe, the air inlet end of the air pump is also connected to the second air delivery pipe, and the other end of the second air delivery pipe extends to the outside of the outer tube;

[0018] A flow detector is also arranged in series on the first gas delivery pipe, and the air pump is fixedly mounted on the inner wall of the outer cylinder.

[0019] Furthermore, a mounting plate is provided on the inner wall of the outer cylinder on one side below the inner cylinder, a plug hole is provided on the mounting plate, and a plug post which fits with the plug hole gap is fixed on the bottom surface of the inner cylinder.

[0020] Furthermore, sealing sleeves are provided on the outer walls of the two vertical tubes of the U-shaped tube, a first sealing groove that matches the sealing sleeve gap is provided on the bottom surface of the inner tube, and a second sealing groove that matches the sealing sleeve gap is provided on the bottom surface of the connecting sleeve.

[0021] Furthermore, a connecting block is fixedly sleeved at the lower end of the U-shaped tube, a convex column is arranged on the bottom surface of the connecting block, and the convex column is loosely fitted on the lower lining plate.

[0022] Furthermore, a connecting ring is concentrically arranged on the top surface of the lower lining disc, a first thread is arranged on the outer side wall of the connecting ring, and a second thread which is spirally matched with the first thread is arranged on the inner wall of the lower end of the outer cylinder;

[0023] The upper cover plate and the outer cylinder are fastened and fixed by fastening parts arranged on both sides, and a carrying handle is rotatably connected to the top surface of the upper cover plate.

[0024] Furthermore, a single-chip microcomputer controller is provided in the middle of the outer wall of the outer tube, and an electric plug is provided at the lower end of the outer wall of the outer tube, and a storage battery is fixedly installed on the inner wall of the outer tube at one side of the upper end of the inner tube;

[0025] The single chip microcomputer controller is electrically connected to the storage battery, the air pump and the flow detector through conductive wires, and the storage battery is electrically connected to the electric plug through conductive wires.

[0026] Furthermore, a feeding hose is slidably sleeved on the discharge pipe, a control box is provided on one side of the feeding hose, a positioning sleeve is provided on one side surface of the control box, and the positioning sleeve is slidably sleeved on the feeding hose;

[0027] The control box and the single chip microcomputer controller are connected wirelessly.

[0028] Furthermore, a U-shaped guard plate is arranged on the outer side of the U-shaped tube below the connecting sleeve, an electric heating film is arranged on the inner wall of the closed end of the U-shaped guard plate, and positioning grooves are arranged on the two open ends of the U-shaped guard plate in the vertical direction, a positioning column is fitted in the gap in the positioning groove, and the lower end of the positioning column is fixedly connected to the inner wall of the outer tube;

[0029] A temperature sensor is also fixedly mounted on the top surface of the piston disc, and both the electric heating film and the temperature sensor are electrically connected to the single-chip microcomputer controller through a conductive line.

[0030] Further, the viscosity detection mechanism includes a rectangular box and a viscosity sheet, the two viscosity sheets are symmetrically arranged on the inner side of the rectangular box, a cylindrical sleeve is arranged at one end of the viscosity sheet, and the cylindrical sleeve is slidably sleeved on the rotating column, both ends of the rotating column are fixedly connected to the inner wall of the storage groove on the side wall of the rectangular box, and a return spring is slidably sleeved on the rotating columns on both sides of the cylindrical sleeve, and the two ends of the return spring are respectively fixedly connected to the cylindrical sleeve and the rectangular box;

[0031] A detection groove with gradually increasing depth is arranged at the upper end of the middle part of the cylindrical sleeve along the circumferential direction, and a distance measuring sensor is arranged on the top surface of the storage groove just above the detection groove, and the distance measuring sensor is electrically connected to the single-chip controller through a conductive line;

[0032] The bottom surface of the rectangular box is integrally formed with a mounting sleeve, and the inner wall of the mounting sleeve is provided with a third thread, and the outer wall of the U-shaped tube is provided with a fourth thread that spirally cooperates with the third thread.

[0033] The present invention has the following beneficial effects:

[0034] 1. When the present invention is in use, by blowing air into the corrugated airbag, the piston disk can be driven to move upward inside the inner cylinder, driving the liquid food above the piston disk to enter from one end of the U-shaped tube, and the entered liquid food is discharged from the other end of the U-shaped tube into the connecting groove, and finally discharged from the discharge pipe to achieve feeding. When the patient has liquid food entering the trachea, the medical staff can press the control box in time to realize the air pump flipping to evacuate the corrugated airbag. Under the action of the air extraction, the piston disk moves downward, and because the pressure is balanced by the U-shaped groove between the inner cylinder and the through groove, under the special structure of the U-shaped tube, the excess liquid food in the connecting groove can be refluxed in time under the action of the communicating vessel principle, so as to avoid the harm to the patient caused by the continued delivery of the liquid food.

[0035] 2. When the present invention is in use, when the liquid food enters the U-shaped tube from the inner cylinder, the viscosity of the liquid food will drive the viscosity sheet to rotate downward with the rotating column as the axis. During the rotation process, the distance sensor will detect the rotation angle of the viscosity sheet according to the change in the depth of the detection groove, thereby realizing the detection of the viscosity size.

[0036] 3. When the present invention is in use, the temperature of the liquid food in the inner tube can be detected by setting a temperature sensor. When a low temperature is detected, the single-chip microcomputer controller will control the electric heating film to heat the liquid food on the outside of the U-shaped tube, which has better applicability.

[0037] 4. When the present invention is in use, the buckling between the upper cover plate and the outer cylinder, and the spiral cooperation between the lower lining plate and the outer cylinder facilitate the opening of the upper cover plate and the lower lining plate, thereby facilitating the removal of the U-shaped tube for cleaning, and the clearance between the insertion hole and the insertion column facilitates the removal of the inner cylinder for cleaning. This arrangement can effectively improve the cleanliness inside the device and avoid the growth of bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 For the present invention Figure 1 Rear view of the structure;

[0041] Figure 3 A vertical cross-sectional view of the present invention;

[0042] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0043] Figure 5 It is a schematic diagram of the internal structure of the outer cylinder in the present invention;

[0044] Figure 6 It is a schematic diagram of the overall structure of the inner cylinder in the present invention;

[0045] Figure 7 For the present invention Figure 6 Bottom schematic diagram of the structure;

[0046] Figure 8 It is a schematic diagram of the cooperation between the lower liner and the U-shaped tube in the present invention;

[0047] Fig. 9 This is a diagram of the lower liner and the U-shaped tube to be matched in the present invention;

[0048] Fig.10 is a vertical cross-sectional view of the viscosity detection mechanism of the present invention;

[0049] Fig.11 It is a schematic diagram of the overall structure of the upper plate body in the present invention;

[0050] Fig.12 It is a schematic diagram of the overall structure of the U-shaped guard plate in the present invention.

[0051] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0052] 1. Outer cylinder; 2. Single-chip microcomputer controller; 3. Lower lining plate; 4. Fastener; 5. Upper cover plate; 6. Feed hose; 7. U-shaped guard plate; 8. U-shaped tube; 9. Connecting sleeve; 10. Rectangular box; 11. Corrugated airbag; 12. Inner cylinder; 101. Electric plug; 102. Discharge pipe; 103. Battery; 104. Mounting plate; 105. Socket; 106. Positioning column; 107. Second thread; 301. Connecting ring; 302. First thread; 501. Carrying handle; 502. U-shaped groove; 503. First rubber sealing cover; 504. Second rubber sealing cover; 601. Control box; 602. Positioning sleeve; 701. Electric heating film; 702. Positioning groove; 801. Sealing sleeve; 8 02, connecting block; 803, convex column; 804, fourth thread; 901, through groove; 902, connecting groove; 903, second sealing groove; 1001, third thread; 1002, storage groove; 1003, detection groove; 1004, rotating column; 1005, viscosity sheet; 1006, distance sensor; 1007, cylindrical sleeve; 1101, piston disc; 1102, first air pipe; 1103, air pump; 1104, second air pipe; 1105, flow detector; 1106, temperature sensor; 1107, rectangular groove; 1201, air inlet pipe; 1202, first sealing groove; 1203, plug column; 5031, first ventilation groove; 5041, second ventilation groove. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0054] See also Figure 1-5As shown in Figures 7, 8, 9 and 11, the present invention is a liquid food feeding device for critical care, comprising an outer cylinder 1 and an upper cover plate 5 and a lower liner plate 3 respectively arranged at the upper and lower positions of the outer cylinder 1, and also comprising a U-shaped tube 8 and an inner cylinder 12 arranged on the inner side of the outer cylinder 1, and a connecting sleeve 9 is further arranged at the upper end position of the inner wall of the outer cylinder 1, and a through groove 901 is arranged in the connecting sleeve 9 along the vertical direction, and a connecting groove 902 is connected and arranged on the outer cylinder 1 on one side of the through groove 901, and a discharge pipe 102 is connected and arranged on the outer wall of the outer cylinder 1 at the position of the connecting groove 902. It can be seen from the accompanying drawings that the above-mentioned components constitute the basic structure of the present device, and the outer cylinder 1, the upper cover plate 5 and the lower liner plate 3 form a relatively sealed environment, so as to play a certain protective role on the liquid food in the inner cylinder 12, and the U-shaped tube 8 can realize the transportation of the liquid food in the inner cylinder 12 to the connecting sleeve 9, and finally discharge it through the connecting groove 902 and the discharge pipe 102 in sequence;

[0055] The lower end of the U-shaped tube 8 is fixedly sleeved with a connecting block 802, and a convex column 803 is provided on the bottom surface of the connecting block 802, and the convex column 803 is loosely fitted on the lower liner 3. This arrangement can fix the U-shaped tube 8 and also enable the lower liner 3 to keep the U-shaped tube 8 immobile when rotating.

[0056] A connecting ring 301 is concentrically arranged on the top surface of the lower liner 3, and a first thread 302 is arranged on the outer wall of the connecting ring 301. Meanwhile, a second thread 107 spirally matched with the first thread 302 is arranged on the inner wall of the lower end of the outer cylinder 1. This arrangement can realize a detachable connection between the lower liner 3 and the outer cylinder 1.

[0057] The upper cover plate 5 and the outer tube 1 are fastened and fixed by fastening members 4 arranged on both sides. This arrangement can realize a detachable connection between the upper cover plate 5 and the outer tube 1. A carrying handle 501 is also rotatably connected to the top surface of the upper cover plate 5. The carrying handle 501 is convenient for medical personnel to carry the device.

[0058] A single-chip controller 2 is provided in the middle of the outer wall of the outer tube 1, and an electric plug 101 is provided at the lower end of the outer wall of the outer tube 1. A battery 103 is also fixedly installed on the inner wall of the outer tube 1 on the upper end of the inner tube 12. The single-chip controller 2 is used to control various electrical components in the device. The electric plug 101 is used to connect to the mains to charge the battery 103. The battery 103 is used to power various electrical components. In actual use, buttons and a display screen can also be provided on the outer wall of the single-chip controller 2 to facilitate viewing and control by medical personnel;

[0059] The single chip controller 2 is electrically connected to the battery 103 , the air pump 1103 and the flow detector 1105 through conductive wires, and the battery 103 is electrically connected to the electrical plug 101 through conductive wires.

[0060] See also Figure 3-9 As shown, a mounting plate 104 is provided on the inner wall of the outer cylinder 1 on one side below the inner cylinder 12, and a plug hole 105 is provided on the mounting plate 104. A plug post 1203 which is loosely matched with the plug hole 105 is also fixed on the bottom surface of the inner cylinder 12, and this arrangement facilitates the disassembly between the inner cylinder 12 and the outer cylinder 1;

[0061] One end of the U-shaped tube 8 slides through the bottom of the inner tube 12 and extends into the inner tube 12, while the other end of the U-shaped tube 8 slides into the through groove 901 from the lower end of the connecting sleeve 9, and the U-shaped tube 8 overlaps the connecting groove 902 by 2 / 3-3 / 4 in height;

[0062] The outer walls of the two vertical tubes of the U-shaped tube 8 are both provided with sealing sleeves 801, the bottom surface of the inner tube 12 is provided with a first sealing groove 1202 which is gap-matched with the sealing sleeve 801, and the bottom surface of the connecting sleeve 9 is provided with a second sealing groove 903 which is gap-matched with the sealing sleeve 801. This arrangement can achieve the sealing performance between the U-shaped tube 8 and the inner tube 12 and the connecting sleeve 9 respectively;

[0063] A corrugated airbag 11 is arranged on the outside of the U-shaped tube 8 in the inner tube 12 in the vertical direction. The lower end of the corrugated airbag 11 is fixedly connected to the inner bottom surface of the inner tube 12, and the upper end of the corrugated airbag 11 is fixedly connected to a piston disc 1101;

[0064] The upper end of the U-shaped tube 8 in the inner cylinder 12 is detachably mounted with a viscosity detection mechanism, and a rectangular groove 1107 for accommodating the viscosity detection mechanism is provided on the top surface of the piston disc 1101. The top surface of the viscosity detection mechanism and the top surface of the U-shaped tube 8 fitted in the through groove 901 are located on the same horizontal plane. This arrangement can realize the communicating vessel principle through the U-shaped tube 8, thereby facilitating the reflux of liquid food.

[0065] The upper end of the inner cylinder 12 is covered with a first rubber sealing cover 503, and the upper end of the connecting sleeve 9 is covered with a second rubber sealing cover 504. The first rubber sealing cover 503 and the second rubber sealing cover 504 are both fixedly connected to the bottom surface of the upper cover plate 5; the first rubber sealing cover 503 is provided with a first ventilation groove 5031, and the second rubber sealing cover 504 is provided with a second ventilation groove 5041. The interior of the upper cover plate 5 is provided with a U-shaped groove 502 which is respectively connected with the first ventilation groove 5031 and the second ventilation groove 5041. This arrangement can achieve consistent air pressure between the inner cylinder 12 and the connecting sleeve 9, and avoid affecting the operation of the connecting vessel due to different air pressures;

[0066] An air inlet pipe 1201 communicating with the interior of the corrugated airbag 11 is provided on the bottom surface of the inner tube 12. The air inlet pipe 1201 is connected to the air outlet end of the air pump 1103 through the first air delivery pipe 1102. The air inlet end of the air pump 1103 is also connected to the second air delivery pipe 1104. The other end of the second air delivery pipe 1104 extends to the outside of the outer tube 1. The air pump 1103 can realize two-way circulation of air by working forward and reversely.

[0067] A flow detector 1105 is also connected in series to the first air delivery pipe 1102. The flow detector 1105 can detect the flow rate of the blown air, so that the medical staff can monitor and control the feeding speed of the liquid food. The air pump 1103 is fixedly installed on the inner wall of the outer tube 1.

[0068] When the above arrangement is in use, the staff controls the air pump 1103 through the single-chip controller 2 to blow air into the corrugated airbag 11. The blowing of air can realize the upward movement of the piston disk 1101, thereby pushing the liquid food in the inner tube 12 upward. The liquid food pushed upward enters through one end of the U-shaped tube 8, and under the principle of the communicating vessel, flows out from the other end of the U-shaped tube 8 and enters the connecting groove 902.

[0069] See also Figure 1-2 As shown, a material delivery hose 6 is slidably sleeved on the discharge pipe 102, a control box 601 is provided on one side of the material delivery hose 6, a positioning sleeve 602 is provided on one side surface of the control box 601, and the positioning sleeve 602 is slidably sleeved on the material delivery hose 6;

[0070] The control box 601 and the single chip controller 2 are connected wirelessly;

[0071] In the above arrangement, the control box 601 is equivalent to a remote control switch. The control of the control box 601 can realize various controls of the electrical components by the single chip controller 2. This arrangement can effectively avoid the inconvenience and delay of the staff in feeding liquid food.

[0072] See also Figure 5 and 12 As shown, a U-shaped guard plate 7 is arranged outside the U-shaped tube 8 below the connecting sleeve 9, an electric heating film 701 is arranged on the inner wall of the closed end of the U-shaped guard plate 7, and positioning grooves 702 are arranged at the two open ends of the U-shaped guard plate 7 in the vertical direction, and a positioning column 106 is fitted in the gap in the positioning groove 702, and the lower end of the positioning column 106 is fixedly connected to the inner wall of the outer cylinder 1. This arrangement can realize the positioning and fixing of the U-shaped guard plate 7 on the one hand, and also facilitate the disassembly and installation of the U-shaped guard plate 7;

[0073] A temperature sensor 1106 is also fixedly mounted on the top surface of the piston disc 1101. The electric heating film 701 and the temperature sensor 1106 are both electrically connected to the single-chip controller 2 through a conductive line.

[0074] When the above arrangement is in use, the liquid food in the inner cylinder 12 can be detected through the setting of the temperature sensor 1106. When the temperature of the liquid food is too low, the staff can control the electric heating film 701 to be energized. When energized, the liquid food can be auxiliary heated on the outside of the U-shaped tube 8.

[0075] See also Figure 9-10 As shown, the viscosity detection mechanism includes a rectangular box 10 and a viscosity sheet 1005, and the two viscosity sheets 1005 are symmetrically arranged on the inner side of the rectangular box 10, and a cylindrical sleeve 1007 is arranged at one end of the viscosity sheet 1005, and the cylindrical sleeve 1007 is slidably sleeved on the rotating column 1004, and both ends of the rotating column 1004 are fixedly connected to the inner wall of the storage groove 1002 on the side wall of the rectangular box 10, and a reset spring is slidably sleeved on the rotating column 1004 on both sides of the cylindrical sleeve 1007, and the two ends of the reset spring are respectively fixedly connected to the cylindrical sleeve 1007 and the rectangular box 10, and the setting of the reset spring can realize the reset of the viscosity sheet 1005 in the absence of liquid food;

[0076] A detection groove 1003 with a gradually increasing depth is arranged at the middle upper end of the cylindrical sleeve 1007 along the circumferential direction, and a distance sensor 1006 is arranged on the top surface of the storage groove 1002 just above the detection groove 1003, and the distance sensor 1006 is electrically connected to the single-chip controller 2 through a conductive line. This arrangement enables the distance sensor 1006 to detect the depth of the detection groove 1003;

[0077] The bottom surface of the rectangular box 10 is integrally formed with a mounting sleeve, and the inner wall of the mounting sleeve is provided with a third thread 1001, and the outer wall of the U-shaped tube 8 is provided with a fourth thread 804 that is spirally matched with the third thread 1001. This arrangement facilitates the disassembly and installation between the viscosity detection mechanism and the U-shaped tube 8, so that the viscosity detection mechanism can be removed when the U-shaped tube 8 is cleaned;

[0078] When the above arrangement is in use, as the viscosity of the liquid food drives the viscosity sheet 1005 to drive the rotating column 1004 to rotate downward as the axis. As the viscosity sheet 1005 rotates, the position of the storage groove 1002 on the cylindrical sleeve 1007 will also change, so that the depth detected by the distance sensor 1006 changes, and then the rotation angle of the viscosity sheet 1005 is converted to realize the detection of the thickness of the liquid food.

[0079] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A liquid feeding device for critical care, comprising an outer cylinder (1) and an upper cover plate (5) and a lower lining plate (3) respectively arranged at upper and lower positions of the outer cylinder (1), characterized in that: It also comprises a U-shaped tube (8) and an inner tube (12) arranged on the inner side of the outer tube (1); a connecting sleeve (9) is further arranged at the upper end of the inner wall of the outer tube (1); a through groove (901) is arranged in the connecting sleeve (9) along the vertical direction; a connecting groove (902) is arranged on the outer tube (1) on one side of the through groove (901); and a discharge pipe (102) is arranged on the outer wall of the outer tube (1) at the position of the connecting groove (902); One end of the U-shaped tube (8) slides through the bottom of the inner tube (12) and extends into the interior of the inner tube (12), while the other end of the U-shaped tube (8) slides from the lower end of the connecting sleeve (9) and is inserted into the through groove (901), and the U-shaped tube (8) overlaps the connecting groove (902) by 2 / 3-3 / 4 in height; A corrugated airbag (11) is arranged in the vertical direction on the outside of the U-shaped tube (8) in the inner cylinder (12); the lower end of the corrugated airbag (11) is fixedly connected to the inner bottom surface of the inner cylinder (12); and the upper end of the corrugated airbag (11) is fixedly connected to a piston disc (1101); A viscosity detection mechanism is detachably mounted on the upper end of the U-shaped tube (8) in the inner cylinder (12), and a rectangular groove (1107) for accommodating the viscosity detection mechanism is provided on the top surface of the piston disc (1101), and the top surface of the viscosity detection mechanism and the top surface of the U-shaped tube (8) fitted in the through groove (901) are located on the same horizontal plane; The upper end of the inner cylinder (12) is covered with a first rubber sealing cover (503), and the upper end of the connecting sleeve (9) is covered with a second rubber sealing cover (504); the first rubber sealing cover (503) and the second rubber sealing cover (504) are both fixedly connected to the bottom surface of the upper cover plate (5); the first rubber sealing cover (503) is provided with a first ventilation groove (5031), and the second rubber sealing cover (504) is provided with a second ventilation groove (5041); the interior of the upper cover plate (5) is provided with a U-shaped groove (502) which is respectively connected to the first ventilation groove (5031) and the second ventilation groove (5041); The viscosity detection mechanism comprises a rectangular box (10) and a viscosity sheet (1005), wherein the two viscosity sheets (1005) are symmetrically arranged on the inner side of the rectangular box (10), a cylindrical sleeve (1007) is arranged at one end of the viscosity sheet (1005), and the cylindrical sleeve (1007) is slidably sleeved on a rotating column (1004), both ends of the rotating column (1004) are fixedly connected to the inner wall of a receiving groove (1002) on the side wall of the rectangular box (10), and a return spring is slidably sleeved on the rotating columns (1004) on both sides of the cylindrical sleeve (1007), and both ends of the return spring are respectively fixedly connected to the cylindrical sleeve (1007) and the rectangular box (10); A detection groove (1003) with a gradually increasing depth is arranged at the upper middle end of the cylindrical sleeve (1007) along the circumferential direction, and a distance sensor (1006) is arranged on the inner top surface of the storage groove (1002) directly above the detection groove (1003), and the distance sensor (1006) is electrically connected to the single-chip controller (2) via a conductive line; The bottom surface of the rectangular box (10) is integrally formed with a mounting sleeve, and the inner wall of the mounting sleeve is provided with a third thread (1001), and the outer wall of the U-shaped tube (8) is provided with a fourth thread (804) spirally matched with the third thread (1001).

2. A liquid food feeding device for critical care according to claim 1, characterized in that: An air inlet pipe (1201) communicating with the interior of the corrugated airbag (11) is provided on the bottom surface of the inner tube (12); the air inlet pipe (1201) is connected to the air outlet end of the air pump (1103) via a first air delivery pipe (1102); a second air delivery pipe (1104) is also connected to the air inlet end of the air pump (1103); the other end of the second air delivery pipe (1104) extends to the outside of the outer tube (1); A flow detector (1105) is also arranged in series on the first gas delivery pipe (1102), and the air pump (1103) is fixedly mounted on the inner wall of the outer cylinder (1).

3. A liquid food feeding device for critical care according to claim 1 or 2, characterized in that: A mounting plate (104) is provided on the inner wall of the outer cylinder (1) on one side below the inner cylinder (12), a plug hole (105) is provided on the mounting plate (104), and a plug post (1203) which is loosely matched with the plug hole (105) is fixed on the bottom surface of the inner cylinder (12).

4. A liquid food feeding device for critical care according to claim 1 or 2, characterized in that: The outer walls of the two vertical tubes of the U-shaped tube (8) are both provided with sealing sleeves (801), the bottom surface of the inner tube (12) is provided with a first sealing groove (1202) which is clearance-matched with the sealing sleeve (801), and the bottom surface of the connecting sleeve (9) is provided with a second sealing groove (903) which is clearance-matched with the sealing sleeve (801).

5. A liquid food feeding device for critical care according to claim 4, characterized in that: The lower end of the U-shaped tube (8) is fixedly sleeved with a connecting block (802), a convex column (803) is provided on the bottom surface of the connecting block (802), and the convex column (803) is loosely fitted on the lower lining plate (3).

6. A liquid food feeding device for critical care according to claim 1 or 5, characterized in that: A connecting ring (301) is concentrically arranged on the top surface of the lower lining disc (3), a first thread (302) is arranged on the outer wall of the connecting ring (301), and a second thread (107) spirally matched with the first thread (302) is arranged on the inner wall of the lower end of the outer cylinder (1); The upper cover plate (5) and the outer cylinder (1) are fastened and fixed via fastening members (4) arranged on both sides, and a carrying handle (501) is rotatably connected to the top surface of the upper cover plate (5).

7. A liquid food feeding device for critical care according to claim 2, characterized in that: A single-chip controller (2) is provided in the middle of the outer wall of the outer cylinder (1), and an electric plug (101) is provided at the lower end of the outer wall of the outer cylinder (1). A storage battery (103) is also fixedly mounted on the inner wall of the outer cylinder (1) at one side of the upper end of the inner cylinder (12); The single-chip controller (2) is electrically connected to the storage battery (103), the air pump (1103) and the flow detector (1105) respectively through conductive wires, and the storage battery (103) and the electric plug (101) are electrically connected through conductive wires.

8. A liquid food feeding device for critical care according to claim 7, characterized in that: A material delivery hose (6) is slidably sleeved on the discharge pipe (102), a control box (601) is provided on one side of the material delivery hose (6), a positioning sleeve (602) is provided on one side surface of the control box (601), and the positioning sleeve (602) is slidably sleeved on the material delivery hose (6); The control box (601) and the single-chip microcomputer controller (2) are connected wirelessly.

9. A liquid food feeding device for critical care according to claim 7 or 8, characterized in that: A U-shaped protective plate (7) is arranged on the outside of the U-shaped tube (8) below the connecting sleeve (9); an electric heating film (701) is arranged on the inner wall of the closed end of the U-shaped protective plate (7); positioning grooves (702) are arranged at two open ends of the U-shaped protective plate (7) in the vertical direction; a positioning column (106) is fitted in the gap in the positioning groove (702), and the lower end of the positioning column (106) is fixedly connected to the inner wall of the outer tube (1); A temperature sensor (1106) is also fixedly mounted on the top surface of the piston disc (1101), and the electric heating film (701) and the temperature sensor (1106) are both electrically connected to the single-chip controller (2) via a conductive line.

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